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Finding the Fourth Proportional to 335,643.75, 503,466.98 and 135,967.91

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Solution

The fourth proportional to 335,643.75, 503,466.98 and 135,967.91 is: 203,952.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,643.75 : 503,466.98 = 135,967.91 : x
  2. Step 2: Convert to fraction form
    335,643.75/503,466.98 = 135,967.91/x
  3. Step 3: Cross multiply
    335,643.75x = 503,466.98 × 135,967.91
  4. Step 4: Simplify right side
    335,643.75x = 68,455,349,827.44
  5. Step 5: Solve for x
    x = 68,455,349,827.44/335,643.75
  6. Step 6: Final answer
    x = 203,952.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.